SAN FAUSTIN S.A.

Holdings History for TENARIS SA - Ordinary Shares, $1.00 par value per share (TS)

Symbol: TS on NYSE
Investment type: Equity / Ordinary Shares, $1.00 par value per share
Latest Disclosed Shares Owned: 692,085,486 shares
Security Ownership %: 69%

SAN FAUSTIN S.A. ownership in TENARIS SA Ordinary Shares, $1.00 par value per share (TS)

10 Feb 2026 - SAN FAUSTIN S.A. has filed an SCHEDULE 13D/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 692,085,486 shares of TENARIS SA Ordinary Shares, $1.00 par value per share (TS). This represents 69% ownership of the company. In their previous filing dated 17 Dec 2025, SAN FAUSTIN S.A. had reported owning 711,005,187 shares, indicating a decrease of +2.7%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
SAN FAUSTIN S.A.	69%	-1.6%	$27,655,736,021	692,085,486	-18,919,701	-2.7%	$39.96	13D/A	06 Feb 2026	10 Feb 2026, 13:39
SAN FAUSTIN S.A.	70%	+1.7%	$28,376,217,013	711,005,187	-2,600,000	-0.36%	$39.91	13D/A	12 Dec 2025	17 Dec 2025, 16:01
SAN FAUSTIN S.A.	68%	+1.5%	$25,960,956,703	713,605,187	0		$36.38	13D/A	17 Sep 2025	19 Sep 2025, 16:01
SAN FAUSTIN S.A.	68%	+1.5%	$26,688,905,354	713,605,187	0		$37.40	13D/A	07 Jul 2025	08 Jul 2025, 08:38
SAN FAUSTIN S.A.	66%		$24,034,222,698	713,605,187			$33.68	13D/A	24 Feb 2025	25 Feb 2025, 14:05